Updated: July, 2025

Best glutamine supplements

Save up to 39% Off

1

BulkSupplements

9.8

Exceptional

BulkSupplements.com L-Glutamine Powder - Glutamine Supplement, for Recovery & Gut Health - Unflavored & Gluten Free, 5g (5000mg) per Serving, 1kg (2.2 lbs) (Pack of 1)

Why we love it

High-quality, allergen-free formulation.

Versatile for any active lifestyle.

Rigorous third-party testing ensures trust.

Main highlights

5000mg Dose for Performance
Enhance strength and performance with a substantial 5000mg of L-Glutamine per serving.

Versatile for Active Lifestyles
Ideal for athletes, sprinters, and active individuals seeking strength and endurance.

Praised for Quality Assurance
Customers appreciate the rigorous third-party testing and cGMP compliance.

More info
How do we rank?

How do we rank
Our AI-powered platform ranks products using multiple weighted factors from millions of products and user reviews across the web, providing the most valuable and real data. Higher scores rank first.
2

Pure Encapsulations

9.7

Exceptional

Pure Encapsulations L-Glutamine 500 mg - Supplement for Immune and Digestive Support, Gut Health and Lining, Metabolism, and Muscle Support* - with Free-Form L-Glutamine - 90 Capsules

Why we love it

Improves gastrointestinal health and reduces IBS symptoms.

Supports lean muscle mass during metabolic stress.

Made from premium, allergen-free, non-GMO ingredients.

Main highlights

Supports Gastrointestinal Health and Lean Muscle
L-glutamine powder supports the mucosal lining and healthy functioning of the gastrointestinal tract, and helps preserve lean muscle mass during metabolic stress.

Ideal for Gut Health and Appetite Suppression
Perfect for individuals with IBS, leaky gut, or those looking to suppress appetite and reduce late-night snacking.

Highly Praised for Improving Digestive Issues
Customers frequently commend the product for significantly improving gut health, reducing bloating, and alleviating symptoms of IBS and leaky gut.

More info
3

NOW Foods

9.5

Excellent

NOW Foods Supplements, L-Glutamine 500 mg, Nitrogen Transporter*, Amino Acid, 120 Veg Capsules

39% Off

Why we love it

Essential amino acid: Help recovery

Nitrogen transporter: Maintain balance

Certified: Halal, non GMO, etc.

Main highlights

Key Features and Benefits
Conditionally essential amino acid, supports immune function, major nitrogen transporter, Halal, non-GMO, kosher, vegan/vegetarian, GMP quality assured, packaged in the USA.

Ideal Use Cases
Beneficial during recovery, maintaining healthy nitrogen balance, essential for those with increased amino acid requirements due to conditions or intense physical activity.

Customer Reviews Highlight
Most praised for its purity, effectiveness in recovery and immune support, and strict adherence to quality certifications and dietary restrictions.

More info
4

Optimum Nutrition

9.2

Excellent

Optimum Nutrition L-Glutamine Muscle Recovery Capsules, 1000mg, 240 Count (Package May Vary)

Why we love it

Supports muscle recovery effectively.

Convenient capsule form.

May reduce sugar cravings.

Main highlights

Key Features and Benefits
1000mg L-Glutamine per 2 capsules supports muscle recovery and protein development.

Ideal Use Cases
Perfect for fitness enthusiasts during intense workouts to replenish glutamine levels.

Most Praised Feature
Helps reduce sugar cravings and muscle soreness, as noted by users.

More info
5

Nutricost

9.1

Excellent

Nutricost L-Glutamine Powder (500 Grams) Unflavored - Gluten Free & Non-GMO, 100 Servings

Why we love it

High potency with 5000mg per serving.

Suitable for vegetarians and non-GMO.

Manufactured in a GMP compliant facility.

Main highlights

High Potency Formula
Provides 5000mg of L-Glutamine per serving, ensuring optimal support for muscle recovery and gut health.

Versatile Use Cases
Ideal for athletes, fitness enthusiasts, and individuals seeking muscle recovery and digestive support.

Quality Manufacturing
Praised for being manufactured in a GMP compliant, FDA registered facility, ensuring safety and quality.

More info
6

Nutricost

9.0

Excellent

Nutricost L-Glutamine 800mg, 180 Capsules - Gluten Free, Non-GMO

Why we love it

800mg dose per capsule

180 servings per bottle

Non GMO, gluten free, soy free

Main highlights

Key Features
800mg L-Glutamine per capsule, 180 servings, Non-GMO, Gluten-Free, Soy-Free, made in GMP compliant, FDA Registered Facility.

Ideal Use Cases
Perfect for post-workout recovery, gut health support, and boosting immune system function.

Customer Reviews Highlight
Most praised for enhancing recovery speed post-exercise and noticeable improvement in digestive health.

More info
7

THORNE

8.7

Very Good

THORNE L-Glutamine - Amino Acid Supplement for GI Health and Immune Function* - 90 Capsules

Main highlights

Recovery: Helps restore plasma glutamine levels depleted after periods of physical stress, such as prolonged exhaustive exercise*

L-Glutamine: An amino acid that helps with post-exercise muscle cell repair and promotes gastrointestinal and immune system health*

Gut Health: Benefits gastrointestinal health and helps maintain gut permeability and optimal gut barrier function*

More info
8

Horbäach

8.6

Very Good

Horbaach L Glutamine Capsules 1000mg | 180 Powder Pills | Supplement for Women and Men | Pre Workout & Post Workout | Non-GMO & Gluten Free

Main highlights

L-GLUTAMINE: Convenient form of Glutamine, the most abundant amino acid in the human body

EXPERTLY CRAFTED: Our professional formula is backed by our commitment to purity and potency

ADVANCED FORMULA: Provides 1,000 mg of L-Glutamine per serving in convenient quick release capsules

More info
9

MuscleTech

8.4

Good

Muscletech 100% L-Glutamine Powder for Enhanced Muscle Recovery - Pure L Glutamine Muscle Growth Builder & Energy Boosting Nutritional Supplement for Men & Women - Unflavored, 60 Servings

Why we love it

Rapidly replenishes glutamine post-training.

Mixes easily with any beverage.

Highly praised for being tasteless.

Main highlights

Rapid Glutamine Replenishment
Supplies 5g of l-glutamine per serving for quick recovery.

Ideal for Intense Training
Perfect for men and women post-workout recovery.

Tasteless and Easy Mixing
Praised for zero taste and effortless blending.

More info
10

Double Wood Supplements

8.2

Good

L Glutamine Capsules - No Fillers (1000mg Servings, 120 Capsules) Non-GMO, Gluten Free, Keto Safe, Vegan Friendly, Third Party Tested (for Endurance and Gut Health) by Double Wood

Main highlights

VEGETARIAN AND KETO FRIENDLY L GLUTAMINE: Double Wood's L-Glutamine capsules (El Glutamina) are not synthesized from animal sources and are safe for both Vegetarians and those in ketosis

TWO MONTH SUPPLY: Each bottle contains 60 servings of 1,000mg L-Glutamine with no fillers. (120 capsules, 500mg per capsules)

GLUTAMINE FOR GUT HEALTH AND EXERCISE ENDURANCE: L-Glutamine Powder may help with leaky gut repair, bloating, gas, discomfort, and intestinal wall support. It may also help promote exercise endurance in the gym

More info

Discover top deals and categories on AmazonCheck Deals

Our top pick

1

BulkSupplements.com L-Glutamine Powder - Glutamine Supplement, for Recovery & Gut Health - Unflavored & Gluten Free, 5g (5000mg) per Serving, 1kg (2.2 lbs) (Pack of 1)
BulkSupplements.com L-Glutamine Powder offers a potent 5000mg dose per serving, designed to boost strength and performance for athletes and active individuals. This unflavored, allergen-free supplement easily integrates into any regimen, making it ideal for those with diverse dietary preferences. Its versatility supports various active lifestyles, from professional athletes to fitness enthusiasts. Customers frequently praise its quality assurance, thanks to rigorous third-party testing and production in cGMP-compliant facilities. Whether you're looking to enhance your workout performance or maintain an active lifestyle, this L-Glutamine powder provides a reliable and high-quality option.

Leave a reply

You can help us improve our product reviews by providing us with your feedback. Please share your thoughts in the section below.